lm324 - Electronics Area https://electronicsarea.com Electrical and Electronics Tutorials and Circuits Sat, 27 Jun 2026 01:03:46 +0000 en-US hourly 1 https://wordpress.org/?v=4.9.26 Battery Monitor Circuit using 4 LEDs for a car https://electronicsarea.com/car-battery-monitor-circuit-using-4-leds/ https://electronicsarea.com/car-battery-monitor-circuit-using-4-leds/#respond Thu, 14 May 2026 16:19:24 +0000 http://electronicsarea.com/?p=1680 This simple car battery monitor allows us to know the voltage of the battery at all times. To achieve this, 4 LEDs are placed somewhere on the dash of the car. Each LED has a label indicating the battery voltage at that time.

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]]> https://electronicsarea.com/car-battery-monitor-circuit-using-4-leds/feed/ 0 8 LED VU meter circuit using LM324 IC https://electronicsarea.com/8-led-vu-meter-made-ic-lm324/ https://electronicsarea.com/8-led-vu-meter-made-ic-lm324/#respond Fri, 31 Mar 2023 17:23:13 +0000 http://electronicsarea.com/?p=1258 This circuit can be used to display the variation of an audio signal in a group of 8 LEDs, behaving like a VU meter. We could use any specific integrated circuit used for VU meters, but we decided to use a readily available LM324 op amp. I.C.

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The post 8 LED VU meter circuit using LM324 IC appeared first on Electronics Area.

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